French Interior Minister Manuel Valls (L) and Paris city mayor Bertrand Delanoe attend a ceremony to commemorate the liberation of Paris in August of 1944 during WWII, at the Police Prefecture in Paris August 23, 2013. REUTERS/Charles Platiau (FRANCE - Tags: POLITICS) 

French Interior Minister Manuel Valls (L) and Paris city mayor Bertrand Delanoe attend a ceremony to commemorate the liberation of Paris in August of 1944 during WWII, at the Police Prefecture in Paris August 23, 2013. REUTERS/Charles Platiau (FRANCE - Tags: POLITICS) 

France's President Francois Hollande walks with Paris Mayor Bertrand Delanoe (2nd R) during a visit to the old city of Kasbah in Tunis July 5, 2013. Hollande told Islamist-led Tunisia on Friday it was heading in the right direction, drawing a positive contrast with countries like Libya and Egypt. REUTERS/Anis Mili (TUNISIA - Tags: POLITICS) 

France's President Francois Hollande walks with Paris Mayor Bertrand Delanoe (R) during a visit to the old city of Kasbah in Tunis July 5, 2013. Hollande told Islamist-led Tunisia on Friday it was heading in the right direction, drawing a positive contrast with countries like Libya and Egypt. REUTERS/Anis Mili (TUNISIA - Tags: POLITICS) 

France's President Francois Hollande walks with Paris Mayor Bertrand Delanoe (centre R) during a visit to the old city of Kasbah in Tunis July 5, 2013. Hollande told Islamist-led Tunisia on Friday it was heading in the right direction, drawing a positive contrast with countries like Libya and Egypt. REUTERS/Anis Mili (TUNISIA - Tags: POLITICS) 

Paris Mayor Bertrand Delanoe (2ndL) and deputy mayor Anne Hidalgo (2ndR) attend the first Gay Pride march (Marche des Fiertes) since a French law permitting gay and lesbian marriage was passed, in Paris June 29, 2013. REUTERS/Gonzalo Fuentes (FRANCE - Tags: POLITICS SOCIETY) 

(L-R) Former Prime Minister Dominique de Villepin, Paris Mayor Bertrand Delanoe, French Socialist party First Secretary Harlem Desir and French UMP political party head Jean-Francois Cope attend a ceremony in honour of late French Prime minister Pierre Mauroy in the courtyard of the Invalides in Paris June 11, 2013. Mauroy, who pushed through a string of worker benefits as the head of modern France's first Socialist government, has died aged 84, on June 7, 2013. REUTERS/Benoit Tessier (FRANCE - Tags: POLITICS OBITUARY) 

(L-R) Paris Mayor Bertrand Delanoe, French Socialist party First Secretary Harlem Desir, French UMP political party head Jean-Francois Cope and Jean-Louis Borloo, head of the Union Democratic Independant (UDI) attend a ceremony in honour of late French Prime minister Pierre Mauroy in the courtyard of the Invalides in Paris June 11, 2013. Mauroy, who pushed through a string of worker benefits as the head of modern France's first Socialist government, has died aged 84, on June 7, 2013. REUTERS/Benoit Tessier (FRANCE - Tags: POLITICS OBITUARY) 

(L-R) Former French Prime Ministers Lionel Jospin, Jean-Pierre Raffarin, Dominique de Villepin, Paris Mayor Bertrand Delanoe, French Socialist party First Secretary Harlem Desir, French UMP political party head Jean-Francois Cope, and Jean-Louis Borloo, head of the Union Democratic Independant (UDI), Francois Bayrou, France's centrist MoDem party leader, attend a ceremony to pay tribute to late former French Prime Minister Pierre Mauroy in the courtyard of the Invalides in Paris June 11, 2013. Mauroy, who pushed through a string of worker benefits as the head of modern France's first Socialist government, has died aged 84, on June 7, 2013. REUTERS/Charles Platiau (FRANCE - Tags: POLITICS OBITUARY) 

(L-R) Former French Prime Minister Dominique de Villepin, Paris Mayor Bertrand Delanoe, French Socialist party First Secretary Harlem Desir, French UMP political party head Jean-Francois Cope, and Jean-Louis Borloo, head of the Union Democratic Independant (UDI), Francois Bayrou, France's centrist MoDem party leader, attend a ceremony to pay tribute to late former French Prime Minister Pierre Mauroy in the courtyard of the Invalides in Paris June 11, 2013. Mauroy, who pushed through a string of worker benefits as the head of modern France's first Socialist government, has died aged 84, on June 7, 2013. REUTERS/Charles Platiau (FRANCE - Tags: POLITICS OBITUARY) 

Paris Mayor Bertrand Delanoe (L) shakes hands with French UMP political party head Jean-Francois Cope (R) during a ceremony to pay tribute to late former French Prime Minister Pierre Mauroy in the courtyard of the Invalides in Paris June 11, 2013. Mauroy, who pushed through a string of worker benefits as the head of modern France's first Socialist government, has died aged 84, on June 7, 2013. REUTERS/Charles Platiau (FRANCE - Tags: POLITICS OBITUARY) 

(L-R) Paris Mayor Bertrand Delanoe, Francois Bayrou, France's centrist MoDem party leader, French UMP political party head Jean-Francois Cope and Jean-Louis Borloo, head of the Union Democratic Independant (UDI), arrive to attend a ceremony to pay tribute to late former French Prime Minister Pierre Mauroy in the courtyard of the Invalides in Paris June 11, 2013. Mauroy, who pushed through a string of worker benefits as the head of modern France's first Socialist government, has died aged 84, on June 7, 2013. REUTERS/Charles Platiau (FRANCE - Tags: POLITICS OBITUARY HEADSHOT) 

Paris Mayor Bertrand Delanoe greets Gilberte Mauroy, widow of late former French Prime Minister Pierre Mauroy, her son Fabien (L), and relatives during a ceremony in the courtyard of the Invalides in Paris June 11, 2013. Mauroy, who pushed through a string of worker benefits as the head of modern France's first Socialist government, has died aged 84, on June 7, 2013. REUTERS/Benoit Tessier (FRANCE - Tags: POLITICS OBITUARY) 

Paris Mayor Bertrand Delanoe (L) and Jamaican sprinter Usain Bolt (R) watch the men's singles final match between Rafael Nadal of Spain and compatriot David Ferrer at the French Open tennis tournament at the Roland Garros stadium in Paris June 9, 2013. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT TENNIS POLITICS SPORT ATHLETICS)

Paris Mayor Bertrand Delanoe (L), Jamaican sprinter Usain Bolt (C) and French Tennis Federation (FFT) President Jean Gachassin (R) watch the men's singles final match between Rafael Nadal of Spain and compatriot David Ferrer at the French Open tennis tournament at the Roland Garros stadium in Paris June 9, 2013. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT TENNIS POLITICS SPORT ATHLETICS) 

Paris Mayor Bertrand Delanoe reacts while speaking to journalists outside Science Po (Political Science Institute), in Paris June 6, 2013. Three men and a woman attacked 19-year-old left-wing militant Clement Meric, a student at Science Po, Wednesday night as he left a store in a shopping district in the French capital. Meric is in a coma in a Parisian hospital. REUTERS/Benoit Tessier (FRANCE - Tags: POLITICS CRIME LAW EDUCATION) 

Actor Alain Delon (C) waves on the red carpet as he poses with Cannes Film festival general delegate Thierry Fremaux (L) and its director Gilles Jacob (2ndL) arriving for the screening of the restored print of the film "Plein Soleil" by Rene Clement during the 66th Cannes Film Festival in Cannes May 25, 2013. At 2ndR, French Culture Minister Aurelie Filippetti and at R, Paris Mayor Bertrand Delanoe. REUTERS/Regis Duvignau (FRANCE - Tags: ENTERTAINMENT POLITICS TPX IMAGES OF THE DAY)

Actor Alain Delon (R), French Culture Minister Aurelie Filippetti (C) and Paris Mayor Bertrand Delanoe (L) pose on the red carpet as they arrive for the screening of the restored print of the film "Plein Soleil" by Rene Clement during the 66th Cannes Film Festival in Cannes May 25, 2013. REUTERS/Regis Duvignau (FRANCE - Tags: ENTERTAINMENT POLITICS)

Actor Alain Delon (R), French Culture Minister Aurelie Filippetti (C) and Paris Mayor Bertrand Delanoe (L) pose on the red carpet as they arrive for the screening of the restored print of the film "Plein Soleil" by Rene Clement during the 66th Cannes Film Festival in Cannes May 25, 2013. REUTERS/Jean-Paul Pelissier (FRANCE - Tags: ENTERTAINMENT POLITICS)

Actor Alain Delon (R), French Culture Minister Aurelie Filippetti (C) and Paris Mayor Bertrand Delanoe (L) pose on the red carpet as they arrive for the screening of the restored print of the film "Plein Soleil" by Rene Clement during the 66th Cannes Film Festival in Cannes May 25, 2013. REUTERS/Jean-Paul Pelissier (FRANCE - Tags: ENTERTAINMENT POLITICS)

Actor Alain Delon (R), French Culture Minister Aurelie Filippetti (C) and Paris Mayor Bertrand Delanoe (L) pose on the red carpet as they arrive for the screening of the restored print of the film "Plein Soleil" by Rene Clement during the 66th Cannes Film Festival in Cannes May 25, 2013. REUTERS/Regis Duvignau (FRANCE - Tags: ENTERTAINMENT POLITICS)

Actor Alain Delon (R), French Culture Minister Aurelie Filippetti (C) and Paris Mayor Bertrand Delanoe (L) pose on the red carpet as they arrive for the screening of the restored print of the film "Plein Soleil" by Rene Clement during the 66th Cannes Film Festival in Cannes May 25, 2013. REUTERS/Eric Gaillard (FRANCE - Tags: ENTERTAINMENT POLITICS)

Actor Alain Delon (C) waves on the red carpet as he poses with Cannes Film festival general delegate Thierry Fremaux (L) and its director Gilles Jacob (2ndL) arriving for the screening of the restored print of the film "Plein Soleil" by Rene Clement during the 66th Cannes Film Festival in Cannes May 25, 2013. At 2ndR, French Culture Minister Aurelie Filippetti and at R, Paris Mayor Bertrand Delanoe. REUTERS/Regis Duvignau (FRANCE - Tags: ENTERTAINMENT POLITICS)

Actor Alain Delon (C) waves on the red carpet as he poses with Cannes Film festival general delegate Thierry Fremaux (L) and its director Gilles Jacob (2ndL) arriving for the screening of the restored print of the film "Plein Soleil" by Rene Clement during the 66th Cannes Film Festival in Cannes May 25, 2013. At 2ndR, French Culture Minister Aurelie Filippetti and at R, Paris Mayor Bertrand Delanoe. REUTERS/Regis Duvignau (FRANCE - Tags: ENTERTAINMENT POLITICS)

Paris Mayor Bertrand Delanoe (C) leaves a cafe in Paris May 14, 2013 after inspecting damage in the neighbourhood the day after clashes between troublemakers and police broke out during celebrations for Paris St Germain's Ligue 1 soccer championship title. REUTERS/Benoit Tessier (FRANCE - Tags: SPORT SOCCER CIVIL UNREST) 

Mayor of Paris, Bertrand Delanoe (L) escorts Polish President Bronislaw Komorowski during a ceremony at the Hotel de Ville, city hall, in Paris, May 7, 2013. President Komorowski is on a two-day state visit in Paris. REUTERS/Ian Langsdon/Pool (FRANCE - Tags: POLITICS) 

Paris Mayor Bertrand Delanoe (R) and deputy mayor Anne Hidalgo attend the French Ligue 1 soccer match where Paris Saint-Germain faces Valenciennes at the Parc des Princes stadium in Paris May 5, 2013. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT SOCCER POLITICS)

Paris Mayor Bertrand Delanoe attends the inauguration of the solar power station Halle Pajol in northern Paris April 15, 2013. The huge rehabilitated Halle Pajol is the first solar power station in Paris with 3500m2 of solar panels on its roof and the largest photovoltaic urban complex in France. The solar station is part of urban renewal projects in the French capital. REUTERS/Charles Platiau (FRANCE - Tags: ENERGY ENVIRONMENT SCIENCE TECHNOLOGY POLITICS HEADSHOT) 

Paris Mayor Bertrand Delanoe attends the inauguration of the solar power station Halle Pajol in northern Paris April 15, 2013. The huge rehabilitated Halle Pajol is the first solar power station in Paris with 3500m2 of solar panels on its roof and the largest photovoltaic urban complex in France. The solar station is part of urban renewal projects in the French capital. REUTERS/Charles Platiau (FRANCE - Tags: ENERGY ENVIRONMENT SCIENCE TECHNOLOGY POLITICS HEADSHOT) 

Paris Mayor Bertrand Delanoe attends the inauguration of the solar power station Halle Pajol in northern Paris April 15, 2013. The huge rehabilitated Halle Pajol is the first solar power station in Paris with 3500m2 of solar panels on its roof and the largest photovoltaic urban complex in France. The solar station is part of urban renewal projects in the French capital. REUTERS/Charles Platiau (FRANCE - Tags: ENERGY ENVIRONMENT SCIENCE TECHNOLOGY POLITICS HEADSHOT) 

Paris Mayor Bertrand Delanoe attends the inauguration of the solar power station Halle Pajol in northern Paris April 15, 2013. The huge rehabilitated Halle Pajol is the first solar power station in Paris with 3500m2 of solar panels on its roof and the largest photovoltaic urban complex in France. The solar station is part of urban renewal projects in the French capital. REUTERS/Charles Platiau (FRANCE - Tags: ENERGY ENVIRONMENT SCIENCE TECHNOLOGY POLITICS HEADSHOT) 

Paris Mayor Bertrand Delanoe attends the inauguration of the solar power station Halle Pajol in northern Paris April 15, 2013. The huge rehabilitated Halle Pajol is the first solar power station in Paris with 3500m2 of solar panels on its roof and the largest photovoltaic urban complex in France. The solar station is part of urban renewal projects in the French capital. REUTERS/Charles Platiau (FRANCE - Tags: ENERGY ENVIRONMENT SCIENCE TECHNOLOGY POLITICS HEADSHOT) 

Paris Mayor Bertrand Delanoe (R), deputy Mayor Anne Hidalgo (2ndR), Socialist deputy and Mayor 18th district Daniel Vaillant (2ndL) and architect Francoise-Helene Jourda attend the inauguration of the solar power station Halle Pajol in northern Paris April 15, 2013. The huge rehabilitated Halle Pajol is the first solar power station in Paris with 3500m2 of solar panels on its roof and the largest photovoltaic urban complex in France. The solar station is part of urban renewal projects in the French capital. REUTERS/Charles Platiau (FRANCE - Tags: ENERGY ENVIRONMENT SCIENCE TECHNOLOGY POLITICS) 

Former conservative party minister Roselyne Narquin-Bachelot (L) holds hands with Socialist Mayor of Paris Bertrand Delanoe as they take part in a march for same-sex marriage and in support of the government's draft law to legalise marriage and adoption for same-sex couples in Paris December 16, 2012 REUTERS/Julien Muguet (FRANCE - Tags: POLITICS SOCIETY)

Actress Diane Kruger (L) and Paris Mayor Bertrand Delanoe attend the official lighting ceremony of holiday decorations along the Champs Elysees in Paris, November 21, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: ENTERTAINMENT) 

Paris Mayor Bertrand Delanoe and deputy Mayor Anne Hidalgo attend the official lighting ceremony of holiday decorations along the Champs Elysees in Paris, November 21, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: ENTERTAINMENT POLITICS) 

Paris Mayor Bertrand Delanoe and deputy Mayor Anne Hidalgo attend the official lighting ceremony of holiday decorations along the Champs Elysees in Paris, November 21, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: ENTERTAINMENT POLITICS) 

Paris Mayor Bertrand Delanoe (R) and actress Diane Kruger attend the official lighting ceremony of holiday decorations along the Champs Elysees in Paris, November 21, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: ENTERTAINMENT) 

Paris Mayor Bertrand Delanoe (2ndR) and actress Diane Kruger (C) attend the official lighting ceremony of holiday decorations along the Champs Elysees in Paris, November 21, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: ENTERTAINMENT) 

Paris Mayor Bertrand Delanoe (R) and actress Diane Kruger attend the official lighting ceremony of holiday decorations along the Champs Elysees in Paris, November 21, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: ENTERTAINMENT) 

Paris Mayor Bertrand Delanoe (2ndR) and actress Diane Kruger (2ndL) attend the official lighting ceremony of holiday decorations along the Champs Elysees in Paris, November 21, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: ENTERTAINMENT) 

Paris Mayor Bertrand Delanoe (2ndR) and actress Diane Kruger (L) attend the official lighting ceremony of holiday decorations along the Champs Elysees in Paris, November 21, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: ENTERTAINMENT) 

Paris Mayor Bertrand Delanoe (R) and actress Diane Kruger attend the official lighting ceremony of holiday decorations along the Champs Elysees in Paris, November 21, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: ENTERTAINMENT) 

French President Francois Hollande and Paris Mayor Bertrand Delanoe are cheered by supporters as they leave the "Oversea Day" of the French Mayors congress in Paris, November 19, 2012. REUTERS/Philippe Wojazer (FRANCE - Tags: POLITICS) 

French President Francois Hollande and Paris Mayor Bertrand Delanoe are cheered by supporters as they leave the "Oversea Day" of the French Mayors congress in Paris, November 19, 2012. REUTERS/Philippe Wojazer (FRANCE - Tags: POLITICS) 

French President Francois Hollande (C), Prime Minister Jean-Marc Ayrault (R) and Paris Mayor Bertrand Delanoe arrive at the "Oversea Day" of the French Mayors congress in Paris, November 19, 2012. REUTERS/Philippe Wojazer (FRANCE - Tags: POLITICS) 

French President Francois Hollande (C), Prime Minister Jean-Marc Ayrault (R) and Paris Mayor Bertrand Delanoe arrive at the "Oversea Day" of the French Mayors congress in Paris, November 19, 2012. REUTERS/Philippe Wojazer (FRANCE) 

Paris Mayor Bertrand Delanoe attends a ceremony at the Hotel des Invalides in Paris November 16, 2012. The ceremony marks the transfer of the Council of the Order of the Liberation, created 75 years ago by General Charles de Gaulle to honour the "Compagnons de la Liberation" (French Resistance Fighters) to the seven cities which are so honoured. REUTERS/Charles Platiau (FRANCE - Tags: POLITICS MILITARY) 

Bertrand Delanoe (L), mayor of Paris, and Anne Hidalgo (R), a member of the French Socialist Party, attend the party's annual congress in Toulouse October 27, 2012. REUTERS/Jean-Philippe Arles (FRANCE - Tags: POLITICS) 

French Prime Minister Jean-Marc Ayrault (C) speaks with Paris mayor Bertrand Delanoe (L), Speaker of the French Senate Jean-Pierre Bel (2ndL) and French National Assembly Speaker Claude Bartolone (2ndR) as he arrives to attend a territorial democracy forum at Sorbonne University in Paris October 5, 2012. At R, Francois Weil, Paris Chief Education officer. REUTERS/Gonzalo Fuentes (FRANCE - Tags: POLITICS) 

French Prime Minister Jean-Marc Ayrault (R), Speaker of the French Senate Jean-Pierre Bel (C) and Paris mayor Bertrand Delanoe arrive to attend a territorial democracy forum at Sorbonne University in Paris October 5, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: POLITICS) 

France's President Francois Hollande (R) shakes hands with Paris mayor Bertrand Delanoe as he arrives on the reviewing stand on the Place de la Concorde before the start of the traditional Bastille Day military parade in Paris July 14, 2012. REUTERS/Benoit Tessier (FRANCE - Tags: MILITARY POLITICS) 

Paris mayor Bertrand Delanoe applauds as he seats on the reviewing stand on the Place de la Concorde during the traditional Bastille Day military parade in Paris July 14, 2012. REUTERS/Charles Platiau (FRANCE - Tags: POLITICS MILITARY ANNIVERSARY) 

(L-R) France's President Francois Hollande, speaker of the French Senate Jean-Pierre Bel, European Parliament President Martin Schulz, French Foreign Affairs minister Laurent Fabius and Paris mayor Bertrand Delanoe look on from the reviewing stand on the Place de la Concorde before the start of the traditional Bastille Day military parade in Paris July 14, 2012. REUTERS/Benoit Tessier (FRANCE - Tags: MILITARY POLITICS) 

(L-R) France's President Francois Hollande, speaker of the French Senate Jean-Pierre Bel, European Parliament President Martin Schulz, French Foreign Affairs minister Laurent Fabius and Paris mayor Bertrand Delanoe look on from the reviewing stand on the Place de la Concorde before the start of the traditional Bastille Day military parade in Paris July 14, 2012. REUTERS/Benoit Tessier (FRANCE - Tags: MILITARY POLITICS) 

(L-R) France's President Francois Hollande, speaker of the French Senate Jean-Pierre Bel, European Parliament President Martin Schulz, French Foreign Affairs minister Laurent Fabius and Paris mayor Bertrand Delanoe look on from the reviewing stand on the Place de la Concorde before the start of the traditional Bastille Day military parade in Paris July 14, 2012. REUTERS/Benoit Tessier (FRANCE - Tags: MILITARY POLITICS) 

(L-R) Theatre Director Jean-Michel Ribes, France's President Francois Hollande, actress Muriel Robin, Paris Mayor Bertrand Delanoe and actress Anne Le Nen attend a reception for the 10th anniversary of the Theatre du Rond-Point in Paris, June 30, 2012. REUTERS/Mal Langsdon (FRANCE - Tags: ENTERTAINMENT POLITICS) 

(L-R) Theatre Director Jean-Michel Ribes, France's President Francois Hollande, actress Muriel Robin, Paris Mayor Bertrand Delanoe and actress Anne Le Nen attend a reception for the 10th anniversary of the Theatre du Rond-Point in Paris, June 30, 2012. REUTERS/Mal Langsdon (FRANCE - Tags: ENTERTAINMENT POLITICS) 

(L-R) France's President Francois Hollande, Theatre Director Jean-Michel Ribes, actress Muriel Robin and Paris Mayor Bertrand Delanoe attend a reception for the 10th anniversary of the Theatre du Rond-Point in Paris, June 30, 2012. REUTERS/Mal Langsdon (FRANCE - Tags: ENTERTAINMENT POLITICS) 

France's President Francois Hollande (C), Theatre Director Jean-Michel Ribes (L) and Paris Mayor Bertrand Delanoe attend a reception for the 10th anniversary of the Theatre du Rond-Point in Paris, June 30, 2012. REUTERS/Mal Langsdon (FRANCE - Tags: ENTERTAINMENT POLITICS)